Coordinated Recovery Strategy for Multi-infeed HVDC Systems Based on MIESCR

A coordinated recovery strategy, based on MIESCR, is proposed for the converters Excessive dynamic reactive power demand and low speed of transmission in multi-infeed HVDC system this paper. Firstly, article deduces consistency two type definition uses respective advantages to improve physical meaning MIESCR; then it elaborates role MIESCR played MIDC voltage power-angle stability Third, pages put forward as fundamental distinguish strength AC system, use size arrange order DC systems. Furthermore, parameter PI controller used realize control each current. There a great method ensure coordinate controller. The last, double infeed simulation model, actual China Southern Power Grid, built Electromagnetic transient software PSCAD/EMTDC confirm validity